Nerve exit point
| Classification according to ICD-10 | |
|---|---|
| G54.9 | Disease of nerve roots and plexuses, unspecified |
| ICD-10 online (WHO version 2019) | |
As nerve exit point (NAP, English . Nerve exit ) refers to a district in which a peripheral nerve a body cavity leaves. A slight pressure with the fingers or the like can cause pain here . 68 of these points, which have diagnostic significance as nerve pressure points , are said to be on the body .
Important nerve exit points that are often checked during physical examinations, for example in the head area, are the exit points of the branches of the trigeminal nerve on the face and the exit points of the greater occipital nerve on the back of the head.
The following three branches of the trigeminal nerve have a palpable nerve exit point: the supraorbital nerve with its exit through the supraorbital foramen that can be felt in the area of the inner surface of the eyebrows , the infraorbital nerve with its exit through the paranasal foramen and below the eye socket , and the mental nerve , which in The height of the 1st or 2nd premolar on the lower jaw emerges through the mental foramen . The nerve exit points of the branches of the trigeminal nerve can be painful on pressure in meningitis and increased intracranial pressure - in each case due to irritation of the meninges innervated by the trigeminal nerve - as well as in trigeminal neuralgia and inflammation of the paranasal sinuses . Pressure pain over the exit points of the greater occipital nerve can occur, for example, in what is known as occipital neuralgia .
Individual evidence
- ^ W. Hacke: Neurology. 13th edition. Springer-Verlag, 2010, ISBN 978-3-642-12381-8 , p. 7.
- ↑ J. Heisel: Neurologische Differentialdiagnostik. 1st edition. Thieme-Verlag, 2007, ISBN 978-3-13-140861-7 , p. 114.